Convergent Domino Knoevenagel Hetero-DielsAlder and Domino Oxidation Hetero-DielsAlder Reactions Encountered in an Unexpected Formation of Novel 5-Aryl-1H-pyrano[2,3-d]pyrimidine-2,4(3H,5H)-diones and 5-Aryl-2,3-dihydro-2-thioxo-1H-pyrano[2,3-d]pyrimidi
作者:Nace Zidar、Danijel Kikelj
DOI:10.1002/hlca.201000325
日期:2011.5
Convergent domino Knoevenagel hetero‐DielsAlder and domino oxidation hetero‐DielsAlder reactions, in which both diene and dienophile are formed under the same reaction conditions in situ, are described for the first time, and their application is demonstrated by a one‐pot synthesis of novel 5‐aryl‐1H‐pyrano[2,3‐d]pyrimidine‐2,4(3H,5H)‐diones and 5‐aryl‐2,3‐dihydro‐2‐thioxo‐1H‐pyrano[2,3‐d]pyrimidin‐4(5H)‐ones
会聚多米诺的Knoevenagel杂狄尔斯阿尔德和多米诺氧化杂狄尔斯阿尔德反应,其中两个二烯和亲双烯体在相同的反应条件下形成原位,被首次描述,并通过一维它们的应用表明一锅法合成新的5-芳基- 1 H ^ -吡喃并[2,3- d ]嘧啶-2,4(3 ħ,5 ħ) -二酮和5-芳基-2,3-二氢-2-硫代-1- ħ -pyrano [2,3 - d ]嘧啶-4(5 H)-ones。